Home / 745,477.60-1,118,216.40-509,281.60

Finding the Fourth Proportional to 745,477.60, 1,118,216.40 and 509,281.60

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Solution

The fourth proportional to 745,477.60, 1,118,216.40 and 509,281.60 is: 763,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,477.60 : 1,118,216.40 = 509,281.60 : x
  2. Step 2: Convert to fraction form
    745,477.60/1,118,216.40 = 509,281.60/x
  3. Step 3: Cross multiply
    745,477.60x = 1,118,216.40 × 509,281.60
  4. Step 4: Simplify right side
    745,477.60x = 569,487,037,338.24
  5. Step 5: Solve for x
    x = 569,487,037,338.24/745,477.60
  6. Step 6: Final answer
    x = 763,922.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.